Project description:Plastic pollution is a pressing global issue, necessitating a focus on consumer behavior to curb this problem at its source. To effectively promote sustainable practices, communication strategies that employ future visions have gained attention. This study examines the effects of a narrative video intervention depicting an optimistic future vision concerning single-use plastic bag consumption in South Africa, compared to a representation of the prevailing status quo. Using a preregistered within-subject design, we assess the psychological and emotional responses to two scenarios of which one is illustrating adaptive behaviors toward reduced plastic bag usage, and the other showcasing current consumption patterns. Parametric analyses revealed a shift in emotional states, characterized by a greater experience of positive emotions and a reduced experience of negative emotions following the exposure to the optimistic future scenario video, as compared to the status quo video. Moreover, engagement with the optimistic future scenario was associated with higher levels of perceived behavioral control and behavioral intentions. No significant changes were found regarding sense of responsibility. These findings point to the potential of optimistic future visions to influence individuals at psychological and emotional levels. This renders optimistic future vision communication as an effective tool for sustainable behavior change, particularly in relation to the sustainable use of plastic shopping bags.
Project description:The practice of green consumption has become a common initiative of the international community. Existing studies have shown that emotional factors have an important impact on consumer behavior, but few scholars in the field of green consumption behavior have explored the relationship between positive emotions and green purchase behavior in specific dimensions. This study creatively put forward two dimensions and four kinds of positive emotional appeals which include the cherishing appeal, the yearning appeal, the proud appeal, and the admiring appeal. Through the conceptual model analysis based on the data, the effects of different four positive emotional appeals on consumers' perceived green value, perceived green responsibility, and green purchase behaviors were confirmed. The results indicated that the four kinds of positive emotional appeals, perceived green value, perceived green responsibility, and green purchase behavior were positively correlated. Perceived green responsibility and perceived green value have significant mediating effect on the relationship between positive emotional appeals and green purchase behaviors. Middle doctrine significantly moderates the relationship between positive emotional appeals (Cherishing VS. Yearning) and perceived green value.
Project description:Health-promoting and sustainable behaviors, such as active transportation and sustainable diets, are associated with positive effects on human health and the environment. In order to unlock the potential of university students as key actors and multipliers, it is of interest to investigate their level of knowledge about the health effects of climate change and their willingness toward and implementation of health-promoting and sustainable behaviors. In November 2021, an online survey was conducted among students at the University of Regensburg, Germany. A total of 3756 participants (response rate 18%; mean age 23 years; 69% women) provided valid data. A large proportion of medical students (48%) considered themselves well-informed about the health-related effects of climate change, while only a small proportion (22%) of students within economic/computer/data sciences and law felt informed. Most participants knew about the impact of climate change on malnutrition (78%), but considerably fewer were aware of its impact on cardiovascular diseases (52%). Participants who considered themselves informed were consistently more willing to engage in climate-friendly behavior, and this willingness was also reflected in their actions, as they simultaneously promoted a healthy lifestyle. Across all academic disciplines, there is a strong need for knowledge transfer regarding topics that combine health and sustainable development.
Project description:Theoretical models of mortality selection have great utility in explaining otherwise puzzling phenomena. The most famous example may be the Black-White mortality crossover: at old ages, Blacks outlive Whites, presumably because few frail Blacks survive to old ages while some frail Whites do. Yet theoretical models of unidimensional heterogeneity, or frailty, do not speak to the most common empirical situation for mortality researchers: the case in which some important population heterogeneity is observed and some is not. I show that, when one dimension of heterogeneity is observed and another is unobserved, neither the observed nor the unobserved dimension need behave as classic frailty models predict. For example, in a multidimensional model, mortality selection can increase the proportion of survivors who are disadvantaged, or "frail," and can lead Black survivors to be more frail than Whites, along some dimensions of disadvantage. Transferring theoretical results about unidimensional heterogeneity to settings with both observed and unobserved heterogeneity produces misleading inferences about mortality disparities. The unusually flexible behavior of individual dimensions of multidimensional heterogeneity creates previously unrecognized challenges for empirically testing selection models of disparities, such as models of mortality crossovers.
Project description:BACKGROUND:Patients with severe mental illness may be subjected to Community Treatment Orders (CTOs) in order to secure that the patients adhere to treatment. Few studies have investigated the use of CTOs within an Assertive Community Treatment (ACT) setting, and little is known about how the tension between the patients' autonomy and the clinicians' responsibility to act in the patients' best interest are resolved in practice. The aim of this study was to explore the service providers' experiences with CTOs within an ACT setting. METHODS:The study was based on reviews of case files of 15 patients, eight individual qualitative in depth interviews and four focus group interviews with service providers involved in ACT and decisions related to CTOs. A modified grounded theory approach was used to analyze the data. RESULTS:The main theme 'responsibility with conflicting priorities' emerged from data analysis (case file reviews, individual interviews and focus group interviews). The balance between coercive approaches and the emphasis on promoting patient autonomy was seen as problematic. The participants saw few alternatives to CTOs as long-term measures to secure ongoing treatment for some of the patients. However, participants perceived the ACT model's comprehensive scope as an opportunity to build rapport with patients and thereby better meet their needs. The team approach, the ACT providers' commitment to establish supportive relationships and the frequent meetings with patients in their home environment were highlighted. The ACT approach gave them insight into patients' everyday lives and, in some cases a greater sense of security when considering whether to take patients off CTOs. CONCLUSIONS:Many of the participants viewed CTOs as helpful in securing long-term treatment for patients. CTO decision-making was described as challenging and complex and presented the providers with many dilemmas. The ACT approach was considered as helpful in that it afforded comprehensive, patient-centered support and opportunities to build rapport.
Project description:INTRODUCTION:The longitudinal integrated clerkship is a model of clinical medical education that is increasingly employed by medical schools around the world. These guidelines are a result of a narrative review of the literature which considered the question of how to maximize the sustainability of a new longitudinal integrated clerkship program. METHOD:All four authors have practical experience of establishing longitudinal integrated clerkship programs. Each author individually constructed their Do's, Don'ts and Don't Knows and the literature that underpinned them. The lists were compiled and revised in discussion and a final set of guidelines was agreed. A statement of the strength of the evidence is included for each guideline. RESULTS:The final set of 18 Do's, Don'ts and Don't Knows is presented with an appraisal of the evidence for each one. CONCLUSION:Implementing a longitudinal integrated clerkship is a complex process requiring the involvement of a wide group of stakeholders in both hospitals and communities. The complexity of the change management processes requires careful and sustained attention, with a particular focus on the outcomes of the programs for students and the communities in which they learn. Effective and consistent leadership and adequate resourcing are important. There is a need to select teaching sites carefully, involve students and faculty in allocation of students to sites and support students and faculty though the implementation phase and beyond. Work is needed to address the Don't Knows, in particular the question of how cost-effectiveness is best measured.
Project description:The purpose of this study (Healthy Colon Project II) is to evaluate different educational approaches for increasing rates of colorectal cancer (CRC) screening in a hard-to-reach urban minority population with health insurance.
Project description:Transforming smallholder farms is critical to global food security and environmental sustainability. The science and technology backyard (STB) platform has proved to be a viable approach in China. However, STB has traditionally focused on empowering smallholder farmers by transferring knowledge, and wide-scale adoption of more sustainable practices and technologies remains a challenge. Here, we report on a long-term project focused on technology scale-up for smallholder farmers by expanding and upgrading the original STB platform (STB 2.0). We created a formalized and standardized process by which to engage and collaborate with farmers, including integrating their feedback via equal dialogues in the process of designing and promoting technologies. Based on 288 site-year of field trials in three regions in the North China Plain over 5 y, we find that technologies cocreated through this process were more easily accepted by farmers and increased their crop yields and nitrogen factor productivity by 7.2% and 28.1% in wheat production and by 11.4% and 27.0% in maize production, respectively. In promoting these technologies more broadly, we created a "one-stop" multistakeholder program involving local government agencies, enterprises, universities, and farmers. The program was shown to be much more effective than the traditional extension methods applied at the STB, yielding substantial environmental and economic benefits. Our study contributes an important case study for technology scale-up for smallholder agriculture. The STB 2.0 platform being explored emphasizes equal dialogue with farmers, multistakeholder collaboration, and long-term investment. These lessons may provide value for the global smallholder research and practitioners.
Project description:Many social challenges stem from individuals' tendency to prefer immediately rewarding but suboptimal behaviors ("Give-Up" options) over more costly endeavors that yield much better outcomes in the long run ("Try" options). For example, many people forgo the long-term benefits of formal education, healthy diets, learning new technologies, and even finding true love. This paper examines various incentivization programs that combine external rewards and punishments to discourage such counterproductive behaviors, which often result in only temporary behavioral change. Our findings suggest that some interventions' limited impact may be due to their focus on only shifting behaviors from "Give-Up" (e.g., dropping out of college, avoiding the gym) to "Try" (e.g., attending college, exercising regularly), without promoting sufficient exploration of these "Try" options. Yet exploration of the long-term benefits of "Trying" may be crucial to increase the chances of long-term learning and commitment. Using a simplified abstraction of this dilemma, our results show a high tendency to choose "Give-Up" options prior to intervention. Examination of four different incentivization strategies suggests that only rewarding exploration of new "Try" options is a straightforward strategy to increase exploration and optimal choice. Punishing both the selection of "Give-Up" options and the choice to exploit suboptimal "Try" options produced similar results. Other common guidance strategies were less effective, as these strategies simply tended to replace one suboptimal behavior with another. Surprisingly, punishments seemed to be a relatively more successful incentive than rewards. We discuss how these insights can help guide policy aiming to improve long-term outcomes through incentivization.
Project description:BackgroundCompetitive hypothesis testing may explain differences in predictive power across multiple health behavior theories.PurposeWe tested competing hypotheses of the Health Belief Model (HBM) and Theory of Reasoned Action (TRA) to quantify pathways linking subjective norm, benefits, barriers, intention, and mammography behavior.MethodsWe analyzed longitudinal surveys of women veterans randomized to the control group of a mammography intervention trial (n = 704). We compared direct, partial mediation, and full mediation models with Satorra-Bentler χ (2) difference testing.ResultsBarriers had a direct and indirect negative effect on mammography behavior; intention only partially mediated barriers. Benefits had little to no effect on behavior and intention; however, it was negatively correlated with barriers. Subjective norm directly affected behavior and indirectly affected intention through barriers.ConclusionsOur results provide empiric support for different assertions of HBM and TRA. Future interventions should test whether building subjective norm and reducing negative attitudes increases regular mammography.